I used to be a 2 a day, morning and night, but recently its been once a week :) Thats only cos the wifes having loads more fun herself doing things to me. This sites made things fun :)
When I first started masterbating with my bullet and vibrator I used to masterbate with either of them 2-4 times a day! =P
Now the top is 2 times. ;)
For me, usually somewhere between 2-3 times a day, sometimes less, rarely more.